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Date:   Thu,  5 May 2022 04:50:01 +0000
Message-Id: <20220505045001.363548-1-ovt@google.com>
Mime-Version: 1.0
Subject: [PATCH] dma-buf: add option text so it can be enabled by users
From:   Oleksandr Tymoshenko <ovt@google.com>
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        linux-kernel@vger.kernel.org
Cc:     Oleksandr Tymoshenko <ovt@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

This reverts commit 3b32a592ea6e4 ("dma-buf: drop option text so users
don't select it.") to allow users select DMA_SHARED_BUFFER option
explicitly. This is required for out-of-tree modules that depend on
dma-buf functionality, for instance drivers that rely on Google's Gasket
framework.

On general-purpose Linux systems the option is usually implicitely
enabled in the default kernel config by subsystems that use it but
systems with smaller kernel footprint have to rely on side-effects
from enabling unrelated options to get dma-buf functionality built.

Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
---
 drivers/base/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 6f04b831a5c0..108bf9b38ce6 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -198,7 +198,7 @@ config SOC_BUS
 source "drivers/base/regmap/Kconfig"
 
 config DMA_SHARED_BUFFER
-	bool
+	bool "Buffer framework to be shared between drivers"
 	default n
 	select IRQ_WORK
 	help
-- 
2.36.0.464.gb9c8b46e94-goog